1 files changed, 126 insertions, 0 deletions
diff --git a/dom/animation/ElementAnimationData.cpp b/dom/animation/ElementAnimationData.cpp
new file mode 100644
index 0000000000..d87caf8a58
--- /dev/null
+++ b/dom/animation/ElementAnimationData.cpp
@@ -0,0 +1,126 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ElementAnimationData.h"
+#include "mozilla/AnimationCollection.h"
+#include "mozilla/TimelineCollection.h"
+#include "mozilla/EffectSet.h"
+#include "mozilla/dom/CSSTransition.h"
+#include "mozilla/dom/CSSAnimation.h"
+#include "mozilla/dom/ScrollTimeline.h"
+#include "mozilla/dom/ViewTimeline.h"
+
+namespace mozilla {
+
+void ElementAnimationData::Traverse(nsCycleCollectionTraversalCallback& cb) {
+  mElementData.Traverse(cb);
+  mBeforeData.Traverse(cb);
+  mAfterData.Traverse(cb);
+  mMarkerData.Traverse(cb);
+}
+
+void ElementAnimationData::ClearAllAnimationCollections() {
+  for (auto* data : {&mElementData, &mBeforeData, &mAfterData, &mMarkerData}) {
+    data->mAnimations = nullptr;
+    data->mTransitions = nullptr;
+    data->mScrollTimelines = nullptr;
+    data->mViewTimelines = nullptr;
+    data->mProgressTimelineScheduler = nullptr;
+  }
+}
+
+ElementAnimationData::PerElementOrPseudoData::PerElementOrPseudoData() =
+    default;
+ElementAnimationData::PerElementOrPseudoData::~PerElementOrPseudoData() =
+    default;
+
+void ElementAnimationData::PerElementOrPseudoData::Traverse(
+    nsCycleCollectionTraversalCallback& cb) {
+  // We only care about mEffectSet. The animation collections are managed by the
+  // pres context and go away when presentation of the document goes away.
+  if (mEffectSet) {
+    mEffectSet->Traverse(cb);
+  }
+}
+
+EffectSet& ElementAnimationData::PerElementOrPseudoData::DoEnsureEffectSet() {
+  MOZ_ASSERT(!mEffectSet);
+  mEffectSet = MakeUnique<EffectSet>();
+  return *mEffectSet;
+}
+
+CSSTransitionCollection&
+ElementAnimationData::PerElementOrPseudoData::DoEnsureTransitions(
+    dom::Element& aOwner, PseudoStyleType aType) {
+  MOZ_ASSERT(!mTransitions);
+  mTransitions = MakeUnique<CSSTransitionCollection>(aOwner, aType);
+  return *mTransitions;
+}
+
+CSSAnimationCollection&
+ElementAnimationData::PerElementOrPseudoData::DoEnsureAnimations(
+    dom::Element& aOwner, PseudoStyleType aType) {
+  MOZ_ASSERT(!mAnimations);
+  mAnimations = MakeUnique<CSSAnimationCollection>(aOwner, aType);
+  return *mAnimations;
+}
+
+ScrollTimelineCollection&
+ElementAnimationData::PerElementOrPseudoData::DoEnsureScrollTimelines(
+    dom::Element& aOwner, PseudoStyleType aType) {
+  MOZ_ASSERT(!mScrollTimelines);
+  mScrollTimelines = MakeUnique<ScrollTimelineCollection>(aOwner, aType);
+  return *mScrollTimelines;
+}
+
+ViewTimelineCollection&
+ElementAnimationData::PerElementOrPseudoData::DoEnsureViewTimelines(
+    dom::Element& aOwner, PseudoStyleType aType) {
+  MOZ_ASSERT(!mViewTimelines);
+  mViewTimelines = MakeUnique<ViewTimelineCollection>(aOwner, aType);
+  return *mViewTimelines;
+}
+
+dom::ProgressTimelineScheduler&
+ElementAnimationData::PerElementOrPseudoData::DoEnsureProgressTimelineScheduler(
+    dom::Element& aOwner, PseudoStyleType aType) {
+  MOZ_ASSERT(!mProgressTimelineScheduler);
+  mProgressTimelineScheduler = MakeUnique<dom::ProgressTimelineScheduler>();
+  return *mProgressTimelineScheduler;
+}
+
+void ElementAnimationData::PerElementOrPseudoData::DoClearEffectSet() {
+  MOZ_ASSERT(mEffectSet);
+  mEffectSet = nullptr;
+}
+
+void ElementAnimationData::PerElementOrPseudoData::DoClearTransitions() {
+  MOZ_ASSERT(mTransitions);
+  mTransitions = nullptr;
+}
+
+void ElementAnimationData::PerElementOrPseudoData::DoClearAnimations() {
+  MOZ_ASSERT(mAnimations);
+  mAnimations = nullptr;
+}
+
+void ElementAnimationData::PerElementOrPseudoData::DoClearScrollTimelines() {
+  MOZ_ASSERT(mScrollTimelines);
+  mScrollTimelines = nullptr;
+}
+
+void ElementAnimationData::PerElementOrPseudoData::DoClearViewTimelines() {
+  MOZ_ASSERT(mViewTimelines);
+  mViewTimelines = nullptr;
+}
+
+void ElementAnimationData::PerElementOrPseudoData::
+    DoClearProgressTimelineScheduler() {
+  MOZ_ASSERT(mProgressTimelineScheduler);
+  mProgressTimelineScheduler = nullptr;
+}
+
+}  // namespace mozilla